The Truth about the PRISM!!!!!!!!! OH NO!!!!

[divemonster]

Whereas, I do not believe that it is the place of the manufacturer to address inflammatory statements in a public forum, substantiated or not, unfortunately, when such postings show up, the manufacturers tend to suffer from detrimental supposition over the rumor mill. Conversely, self-defense tends to fuel more controversy and stone tossing.

Most of the criticisms are answerable by objective information available on-line www.steammachines.com. The subjective criticisms remain the opinion of the writer.

For our part, we provoked this hostility back in February 2002, when we put John Taylor on cash only business status due to the number of documented, financially unsupportable transactions he attempted during the purchase and running of his PRISM.

Compare his post from January 2002 http://www.scubaboard.com/showpost.php?p=53274&postcount=2 with his posts from February 2002 onwards.

Suffice to say he sold his unit in July 2002 to a happy user who has not experienced anything close to the mishaps John claims and who regularly uses his system for shark research.

Shas

still patiently awaiting my instruction manual and orings so I can saftely dive my prisim and tell everyone what a good product you have instead of becoming another nay sayer,dave

 

[DrMike]

8) The HUD is easy to read and understand, and conveys more than just on/off setpoint. User friendlyness?
All you gotta do is look at it. And they all have that in common.
.

still patiently awaiting my HUD so I can safely dive my MK15.5 (with prism electronics) and tell everyone what a good product you have instead of becoming another nay sayer,mike


People are starting to laugh at my home made one!

Whilst on the subject of Prism analog secondary I had an interesting experience.

My potted early model prism secondary developed an interesting fault whereby it read correct PPO2 on land before and after dives but would read higher and higher ppo2 the deeper I went. On ascent it would reduce again back to normal at the surface! :06: It would give me a ppo2 of 2bar at 15m for example when my actual ppo2 was 1.3 and it would be off the scale at 30m


The weird thing was when I switched off the power underwater the secondary displayed the correct ppo2!


The whole secondary is potted - and the fault luckily didnt effect the primary setpoint control (horseshoe resistors doing their job) I had no choice but to run manually with electronics switched off.

So after 200hours of becoming really quite proficient at manual running I obtained an original 30 year old secondary and a 20 year old bendix cable plugged it in and bingo problem solved! :07:



Cheers
Mike